What Is the Difference Between the 73N & 91N Epson InkJet Cartridges?

The Epson 73N and 91N cartridges were developed to work with the Stylus line of printers. The 73N cartridges can also be used in the Stylus Office printers.

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Features

The 73N and 91N cartridges are made with Epson DURABrite Ultra ink technology. They come in black, cyan, magenta and yellow and yield up to 170 pages per cartridge. They are water and smudge resistant.

Compatible Printers

The 91N ink cartridges are compatible with the Stylus line of printers, including the C90, CX5500, T20, T21, TX100, and TX110. While the 73N cartridges work with these same Stylus printers, they are also compatible with the Stylus Office line of printers, such as the T30, T40W, TX300F and TX600FW.

Purchasing

The 73N cartridges are more expensive than the 91N cartridges. The 73Ns start at around £11 while the 91Ns start at around £6.0 (as of December 2010).